The best rifle scope is only as good as the rings that hold it in place. Which is why legendary Burris Signature Rings are the choice of the world s most discriminating shooters. The tremendous gripping power of the ingenious design anchors the scope at zero round after round. Additionally a synthetic self-aligning insert inside the steel ring cradles the scope and insures proper alignment and guarantees scope-to-ring contact is virtually 100%. That s as much as 30% more contact than some other mounts.